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Merge pull request #786 from fatedier/header
support setting headers in http request
This commit is contained in:
commit
cf4136fe99
22
README.md
22
README.md
@ -36,6 +36,7 @@ frp is a fast reverse proxy to help you expose a local server behind a NAT or fi
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* [Support KCP Protocol](#support-kcp-protocol)
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* [Connection Pool](#connection-pool)
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* [Rewriting the Host Header](#rewriting-the-host-header)
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* [Set Headers In HTTP Request](#set-headers-in-http-request)
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* [Get Real IP](#get-real-ip)
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* [Password protecting your web service](#password-protecting-your-web-service)
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* [Custom subdomain names](#custom-subdomain-names)
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@ -485,7 +486,7 @@ This feature is fit for a large number of short connections.
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### Rewriting the Host Header
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When forwarding to a local port, frp does not modify the tunneled HTTP requests at all, they are copied to your server byte-for-byte as they are received. Some application servers use the Host header for determining which development site to display. For this reason, frp can rewrite your requests with a modified Host header. Use the `host_header_rewrite` switch to rewrite incoming HTTP requests.
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When forwarding to a local port, frp does not modify the tunneled HTTP requests at all, they are copied to your server byte-for-byte as they are received. Some application servers use the Host header for determining which development site to display. For this reason, frp can rewrite your requests with a modified host header. Use the `host_header_rewrite` switch to rewrite incoming HTTP requests.
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```ini
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# frpc.ini
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@ -496,7 +497,24 @@ custom_domains = test.yourdomain.com
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host_header_rewrite = dev.yourdomain.com
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```
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If `host_header_rewrite` is specified, the Host header will be rewritten to match the hostname portion of the forwarding address.
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If `host_header_rewrite` is specified, the host header will be rewritten to match the hostname portion of the forwarding address.
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### Set Headers In HTTP Request
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You can set headers for proxy which type is `http`.
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```ini
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# frpc.ini
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[web]
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type = http
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local_port = 80
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custom_domains = test.yourdomain.com
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host_header_rewrite = dev.yourdomain.com
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header_X-From-Where = frp
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```
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Note that params which have prefix `header_` will be added to http request headers.
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In this example, it will set header `X-From-Where: frp` to http request.
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### Get Real IP
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17
README_zh.md
17
README_zh.md
@ -34,6 +34,7 @@ frp 是一个可用于内网穿透的高性能的反向代理应用,支持 tcp
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* [底层通信可选 kcp 协议](#底层通信可选-kcp-协议)
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* [连接池](#连接池)
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* [修改 Host Header](#修改-host-header)
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* [设置 http 请求的 header](#设置-http-请求的-header)
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* [获取用户真实 IP](#获取用户真实-ip)
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* [通过密码保护你的 web 服务](#通过密码保护你的-web-服务)
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* [自定义二级域名](#自定义二级域名)
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@ -525,6 +526,22 @@ host_header_rewrite = dev.yourdomain.com
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原来 http 请求中的 host 字段 `test.yourdomain.com` 转发到后端服务时会被替换为 `dev.yourdomain.com`。
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### 设置 http 请求的 header
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对于 `type = http` 的代理,可以设置在转发中动态添加的 header 参数。
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```ini
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# frpc.ini
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[web]
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type = http
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local_port = 80
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custom_domains = test.yourdomain.com
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host_header_rewrite = dev.yourdomain.com
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header_X-From-Where = frp
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```
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对于参数配置中所有以 `header_` 开头的参数(支持同时配置多个),都会被添加到 http 请求的 header 中,根据如上的配置,会在请求的 header 中加上 `X-From-Where: frp`。
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### 获取用户真实 IP
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目前只有 **http** 类型的代理支持这一功能,可以通过用户请求的 header 中的 `X-Forwarded-For` 和 `X-Real-IP` 来获取用户真实 IP。
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@ -56,10 +56,10 @@ dns_server = 8.8.8.8
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# heartbeat_interval = 30
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# heartbeat_timeout = 90
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# ssh is the proxy name same as server's configuration
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# if user in [common] section is not empty, it will be changed to {user}.{proxy} such as your_name.ssh
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# 'ssh' is the unique proxy name
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# if user in [common] section is not empty, it will be changed to {user}.{proxy} such as 'your_name.ssh'
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[ssh]
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# tcp | udp | http | https, default is tcp
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# tcp | udp | http | https | stcp | xtcp, default is tcp
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type = tcp
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local_ip = 127.0.0.1
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local_port = 22
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@ -120,6 +120,8 @@ custom_domains = web02.yourdomain.com
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# locations is only available for http type
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locations = /,/pic
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host_header_rewrite = example.com
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# params with prefix "header_" will be used to update http request headers
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header_X-From-Where = frp
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[web02]
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type = https
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@ -136,7 +138,7 @@ remote_port = 6003
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# if plugin is defined, local_ip and local_port is useless
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# plugin will handle connections got from frps
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plugin = unix_domain_socket
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# params set with prefix "plugin_" that plugin needed
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# params with prefix "plugin_" that plugin needed
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plugin_unix_path = /var/run/docker.sock
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[plugin_http_proxy]
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@ -429,10 +429,11 @@ type HttpProxyConf struct {
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LocalSvrConf
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Locations []string `json:"locations"`
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HostHeaderRewrite string `json:"host_header_rewrite"`
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HttpUser string `json:"http_user"`
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HttpPwd string `json:"http_pwd"`
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Locations []string `json:"locations"`
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HttpUser string `json:"http_user"`
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HttpPwd string `json:"http_pwd"`
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HostHeaderRewrite string `json:"host_header_rewrite"`
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Headers map[string]string `json:"headers"`
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}
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func (cfg *HttpProxyConf) Compare(cmp ProxyConf) bool {
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@ -447,9 +448,20 @@ func (cfg *HttpProxyConf) Compare(cmp ProxyConf) bool {
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strings.Join(cfg.Locations, " ") != strings.Join(cmpConf.Locations, " ") ||
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cfg.HostHeaderRewrite != cmpConf.HostHeaderRewrite ||
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cfg.HttpUser != cmpConf.HttpUser ||
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cfg.HttpPwd != cmpConf.HttpPwd {
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cfg.HttpPwd != cmpConf.HttpPwd ||
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len(cfg.Headers) != len(cmpConf.Headers) {
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return false
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}
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for k, v := range cfg.Headers {
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if v2, ok := cmpConf.Headers[k]; !ok {
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return false
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} else {
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if v != v2 {
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return false
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}
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}
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}
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return true
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}
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@ -461,6 +473,7 @@ func (cfg *HttpProxyConf) UnmarshalFromMsg(pMsg *msg.NewProxy) {
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cfg.HostHeaderRewrite = pMsg.HostHeaderRewrite
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cfg.HttpUser = pMsg.HttpUser
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cfg.HttpPwd = pMsg.HttpPwd
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cfg.Headers = pMsg.Headers
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}
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func (cfg *HttpProxyConf) UnmarshalFromIni(prefix string, name string, section ini.Section) (err error) {
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@ -487,6 +500,13 @@ func (cfg *HttpProxyConf) UnmarshalFromIni(prefix string, name string, section i
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cfg.HostHeaderRewrite = section["host_header_rewrite"]
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cfg.HttpUser = section["http_user"]
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cfg.HttpPwd = section["http_pwd"]
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cfg.Headers = make(map[string]string)
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for k, v := range section {
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if strings.HasPrefix(k, "header_") {
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cfg.Headers[strings.TrimPrefix(k, "header_")] = v
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}
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}
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return
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}
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@ -498,6 +518,7 @@ func (cfg *HttpProxyConf) MarshalToMsg(pMsg *msg.NewProxy) {
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pMsg.HostHeaderRewrite = cfg.HostHeaderRewrite
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pMsg.HttpUser = cfg.HttpUser
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pMsg.HttpPwd = cfg.HttpPwd
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pMsg.Headers = cfg.Headers
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}
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func (cfg *HttpProxyConf) CheckForCli() (err error) {
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@ -91,12 +91,13 @@ type NewProxy struct {
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RemotePort int `json:"remote_port"`
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// http and https only
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CustomDomains []string `json:"custom_domains"`
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SubDomain string `json:"subdomain"`
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Locations []string `json:"locations"`
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HostHeaderRewrite string `json:"host_header_rewrite"`
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HttpUser string `json:"http_user"`
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HttpPwd string `json:"http_pwd"`
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CustomDomains []string `json:"custom_domains"`
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SubDomain string `json:"subdomain"`
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Locations []string `json:"locations"`
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HttpUser string `json:"http_user"`
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HttpPwd string `json:"http_pwd"`
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HostHeaderRewrite string `json:"host_header_rewrite"`
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Headers map[string]string `json:"headers"`
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// stcp
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Sk string `json:"sk"`
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@ -225,6 +225,7 @@ type HttpProxy struct {
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func (pxy *HttpProxy) Run() (remoteAddr string, err error) {
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routeConfig := vhost.VhostRouteConfig{
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RewriteHost: pxy.cfg.HostHeaderRewrite,
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Headers: pxy.cfg.Headers,
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Username: pxy.cfg.HttpUser,
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Password: pxy.cfg.HttpPwd,
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CreateConnFn: pxy.GetRealConn,
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@ -19,7 +19,7 @@ import (
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"strings"
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)
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var version string = "0.19.1"
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var version string = "0.20.0"
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func Full() string {
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return version
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@ -63,12 +63,17 @@ func NewHttpReverseProxy() *HttpReverseProxy {
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Director: func(req *http.Request) {
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req.URL.Scheme = "http"
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url := req.Context().Value("url").(string)
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host := getHostFromAddr(req.Context().Value("host").(string))
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host = rp.GetRealHost(host, url)
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oldHost := getHostFromAddr(req.Context().Value("host").(string))
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host := rp.GetRealHost(oldHost, url)
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if host != "" {
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req.Host = host
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}
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req.URL.Host = req.Host
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headers := rp.GetHeaders(oldHost, url)
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for k, v := range headers {
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req.Header.Set(k, v)
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}
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},
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Transport: &http.Transport{
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ResponseHeaderTimeout: responseHeaderTimeout,
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@ -117,6 +122,14 @@ func (rp *HttpReverseProxy) GetRealHost(domain string, location string) (host st
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return
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}
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func (rp *HttpReverseProxy) GetHeaders(domain string, location string) (headers map[string]string) {
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vr, ok := rp.getVhost(domain, location)
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if ok {
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headers = vr.payload.(*VhostRouteConfig).Headers
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}
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return
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}
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func (rp *HttpReverseProxy) CreateConnection(domain string, location string) (net.Conn, error) {
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vr, ok := rp.getVhost(domain, location)
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if ok {
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@ -59,6 +59,7 @@ type VhostRouteConfig struct {
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RewriteHost string
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Username string
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Password string
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Headers map[string]string
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CreateConnFn CreateConnFunc
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}
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